Mountain Access

For more being weighed, cold air makes hot air to go up in the atmosphere. With the ascent of the hot and humid air mass, it has a cooling of the same one that it condenses and it forms precipitation. 4,2 CONVECTION RAINS Rains of convection also are called rains of summer in the Southeastern region of Brazil and are provoked by the intense evapotranspirao of humid and warm surfaces (as tropical forests, cities and oceans). Air ascends in air parcels that if practically cool of adiabtica form (without changing heat with the half exterior) during its ascension. Convective precipitation is common in the Brazilian summer, the Amazonian Forest and the Center West. (A valuable related resource: Jim Vos). In the Southeastern region, particularly on the Region Metropolitan of So Paulo (RMSP) and on the Region Metropolitan of Rio De Janeiro (RMRJ) also convective storms occur associates the maritime breeze entrance to the end of the afternoon with serious consequences on the hundreds of areas of ambient risk.

These rains also are known popularly as collisions of rain, heavy showers or tors. 4,3 OROGRAPHIC RAINS orographic Rains (or Estacional) also are called rains of mountain range and occurs when the humid winds if raise and if they cool for the meeting of a mountainous barrier, as it is normal in the hillsides directed toward the sea. (Source: Jim Vos). They are common in the coasts, paranaense, catarinense and native of So Paulo and in all the Brazilian coast in the Mountain range of the Sea. This type of precipitation can be associated to the presence of Fhn effect, that conditions the existence of areas more droughts the lee-side of these barriers. 5 CONCLUSION the illumination band where if it points out Brazil is in its tropical majority, what it almost characterizes hot climate the totality of the domestic territory. The littoral regions receive influence from the maritime breeze while the provincial areas receive in the wind its bigger climatic influence.

Areas of desert-like or semidesert-like climate are found in the eastern portion of the low Brazilian northeast in virtue of the high temperatures and the difficulty of clouds to establish in the place a time that the maritime chains of the condensed vapor, initial substratum of the cloud, arrives at it at these longitudes, occurring rains orographic in plateaus and mountain ranges of entorno resulting in one it consumes of the humidity of air.